Historical Note: Alexander Dawes DuBois, a distinguished amateur ornithologist and pioneer bird photographer, died in Minneapolis, Minnesota, on 17 February 1966. He had been a member of the Cooper Ornithological Society since 1911, and of the American Ornithologists Union since 1905. He was advanced to elective membership in the latter organization in 1950. Mr. DuBois received his baccalaureate degree from the University of Illinois in 1899 and a professional degree in electrical engineering from Cornell University in 1912. Subsequently, he served on the faculties of electrical engineering at Cornell and at Purdue University and contributed extensively to the research literature of his profession. His ornithological writings, photographs, and technical papers on nature photography were published in the leading American and British journals and in many popular magazines. He contributed to many volumes of Bent's Life Histories of North American Birds; A. A. Saunders' Birds of Montana was illustrated exclusively with DuBois' photographs. At the time of his death at the age of 90, Mr. DuBois was still actively engaged in the preparation of a book-length manuscript containing a selection of his field observations and his finest bird portraits.